|
HAIT Journal of Science and Engineering B Volume x, Issue x, pp. xxx-xxx © 2006 Holon Institute of Technology | |||||
| |||||
On the development of a regulating valve design with improved cavitational characteristics
Michael P. Levitsky1,* and Semyon P. Levitsky 2
1Institute for Industrial Mathematics, Beer-Sheva
84311, Israel | 2Sami Shamoon College of Engineering, Beer-Sheva 84100, Israel *Corresponding author: levitsky@iimath.com Received 2 April 2006, revised 5 June 2006, accepted 8 June 2006
| Under investigation is the basic structure of a valve with a vortex chamber as final-control element, made with tangential ducts so as to create opposing flows. The hydraulic characteristics of the valve are obtained theoretically and experimentally. The reason is substantiated why swirling the flow before the orifice improves its cavitational characteristic. A valve design is proposed, which, besides regulating the flow rate, can function as a shut-off device. The cavitational characteristics of the valve are described at different positions of the regulating element. Keywords: Vortex valve, swirl chamber, cavitational characteristic, control fluid flows, regulating element, pressure drop, pressure source, nozzle
|